451051243 has 4 divisors (see below), whose sum is σ = 451316880. Its totient is φ = 450785608.

The previous prime is 451051217. The next prime is 451051301. The reversal of 451051243 is 342150154.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 451051243 - 2⁹ = 451050731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451051213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130255 + ... + 133672.

It is an arithmetic number, because the mean of its divisors is an integer number (112829220).

Almost surely, 2^451051243 is an apocalyptic number.

451051243 is a deficient number, since it is larger than the sum of its proper divisors (265637).

451051243 is a wasteful number, since it uses less digits than its factorization.

451051243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265636.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 451051243 is about 21237.9670166426. The cubic root of 451051243 is about 766.9056923473.

The spelling of 451051243 in words is "four hundred fifty-one million, fifty-one thousand, two hundred forty-three".